The future hydrogen economy may hinge on iridium, a metal so rare that only about 8 tonnes are produced worldwide each year.

Europe has embraced the electric vehicle with remarkable enthusiasm. Governments encourage motorists to abandon internal ...

Housing costs soared. Families got smaller. Religious affiliation shifted. But not every trend is what you'd expect.

Disaster response helps communities and saves lives, but it can also leave behind tons of waste and have a negative ...

Water contaminants span a wide range of biological and chemical agents, which makes effective wastewater treatment essential ...